Active Geometry Control Suspension Single Actuator Mechanism
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Solution Overview
Problem
Conventional active geometry control suspensions require separate actuators to control toe and camber angles, leading to increased weight and cost.
Innovation Solution
A multilink suspension system with a single actuator that simultaneously controls both toe and camber angles through a motor-driven screw mechanism, utilizing levers and links to adjust wheel geometry.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If separate actuators are used to control toe and camber angles, then control precision is improved, but weight and cost increase
Solution Approach 1:
The patent combines two separate actuators into a single actuator that controls both toe and camber angles through a unified mechanism. The actuator includes a motor, screw, and lever system where one actuator simultaneously adjusts both wheel geometries, directly resolving the contradiction by reducing component count while maintaining control capability
Solution Approach 2:
The single actuator is designed with multi-functional capability to perform both toe angle adjustment and camber angle adjustment. The lever mechanism allows the actuator to universally control multiple wheel geometry parameters through different lever arms and connection points, achieving one-component-multiple-functions that reduces weight
2Measurement precision
If separate actuators are used to control toe and camber angles, then control precision is improved, but cost increases
Solution Approach 1:
By merging two separate actuator systems into one integrated actuator unit, the patent reduces manufacturing costs through economies of scale, fewer parts to source and assemble, and simplified production processes while maintaining the precision control of both toe and camber angles
3Reliability
If multiple actuators are used, then control reliability is improved, but device complexity increases
Solution Approach 1:
The patent merges multiple actuator systems into a single integrated unit with unified control logic, reducing device complexity by eliminating redundant components and control systems while maintaining control reliability through the coordinated lever mechanism that simultaneously manages toe and camber adjustments
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Improves vehicle stability by reducing weight and cost while allowing easy adjustment of initial toe and camber angles, enhancing turning stability and reducing complexity.
Implementation Method 1
The actuator may include a motor and a screw moving back and forth by the motor, and the screw may be connected to the connection lever.
Data Source
AI summary
An active geometry control suspension may include a first link having one side connected to a wheel carrier engaged to a wheel and the other side extending along a width direction of a vehicle; a second link having one side connected to the wheel carrier and the other side extending in the width direction of the vehicle; a first lever having one side connected to the other side of the first link; a second lever having one side connected to the other side of the second link; a connection lever connecting the other side of the first lever and the other side of the second lever; and an actuator connected to the connection lever.